20727575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3967}}^1$

素因数の和:4007

約数の個数: 24

約数和(自身を含む): 29521920

約数和(自身を除く): 8794345

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 3967, 5225, 19835, 43637, 75373, 99175, 218185, 376865, 829103, 1090925, 1884325, 4145515, 20727575]

約数ペア:

[(1, 20727575), (5, 4145515), (11, 1884325), (19, 1090925), (25, 829103), (55, 376865), (95, 218185), (209, 99175), (275, 75373), (475, 43637), (1045, 19835), (3967, 5225)]